You are going to have to go to an OEM parts website and scroll through and see what you can find. I use Toyotapartsdeal.com. I tried looking and there is a ton of parts that make up that seat. Pretty sure from what I'm seeing that you can buy the item cheaper than what the dealer is wanting to charge for a new seat. You may have to buy the whole base however. Sometimes I will go to multiple websites trying to find parts. I know the dealer that I frequent for parts even has more detailed images than I have seen online. You may want to go to the parts counter and see if they can help you track down exactly what you're needing. And then at least have the part number.